Pine needles have a shape which makes them less vulnerable to the cold than the flat leaves of the maple tree or other trees of that type. That is their ecological niche, to keep their leaves and continue to perform photosynthesis all year long.
Pine trees do shed their needles regularly, though - just walk past a pine tree and check out the ground beneath.
pine trees. yup.
a pine trees pine
Pine trees
pine trees grew along the shores of green lake in the book holes
spruce or pine trees are always have green pine needles and brown bark all trough out the year. While birch and willow trees their bark turns a more whitesh brown.
No because when some of the leaves die,it is a gray like other trees except for pine trees
Pine trees are dark green when healthy
Pine trees
Pine trees are green in winter because they have needles instead of leaves.
Pine wood trees.
Ever Green trees or pine trees
Pine trees are green in winter because they are evergreen and do not lose their needles.